Pump attachment for automobiles



W. E. CASE.

PUMP ATTACHMENT FOR AUTOMOBILES.

APPLICATION FILED DEC- 10, I919.

Patented I 001;. 12, 1920.

2 SHEETS-SHEET 1 uwwlloz w. E. CASE. PUMP ATTACHMENT FOR AUTOMOBILES.

APPLICATION FILED DEC. 10, l9l9 Patented 01:.12, 1920.

2 SHEETS-SHEET 2.

' WILLIAM EARNEST CASE, OF COLUMBUS, OHIO, ASSIGNOR T HORACE B. HERRON, OF

UNITED STATES PATENT OFFICE.

COLUMBUS, OHIO.

PUMP ATTACHMENT FOR AUTOMOBILES.

Application filed December 10, 1919.

T 0 (ZZZ whom it may concern Be it known that 1, WILLIAM EARNns'r CAsn, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Pump Attachments for Automobiles, of which the following is a specification.

This invention relates to improvements in pump attachments for automobiles of the type provided with a cooling system which operates on the thermosiphon principle and wherein the heated water rises and the cool liquid descends.

Some of the principal objects of this 1nvention is to provide a pump unit mechanism which is simple in construction and operation, and which also can be installed in position without the services of an expert mechanic.

A further object of the invention is to provide an attaching means for the pump unit which can be fitted to an existing part of an engine mechanism without alteration to the engine mechanism, and at the same time provide for a vertical adjustment of the pump unit to properly position it with respect to the radiator in both old and new types of engines, and also a rotary ad ustment for regulating the tension of the dIlV ing belt.

These and other objects hereinafter set forth are attained by the means illustrated in the accompanying drawings, in which Figure 1, isa side elevation partly in section showing the improved attachment con-.

nected in position between the engine and radiator.

Fig. 2, is a sectional view taken on the line 22 of Fig. 1.

Fig. 3, is an inside face view of the rotor section of the pump. Fig. 4, is an lnside face-view of the inlet section of the pump, and Fig. 5, is avertical sectional 'vzew through the pump on the line 55 of Fig. 2.

Similar reference numerals in all of the figures of the drawings designate like parts.

Referring to the drawings 10 designates I the engine, 11 the radiator, and 12 the usual top water connection between the engine and the radiator.

The pump unit comprises the inlet section 13 having an inlet nozzle formed lntegral therewith'which is designated by 14, and a rotor section 15 which is provided with an outlet nozzle 16, and the two sections are se- Specification of Letters Patent.

Patented Oct. 12, 1920.

Serial No. 343,707.

cured together by screws 17 which engage threaded apertures 18 formed in both sections. The contacting faces of the two sections are preferably machine finished, so that they will fit close together and prevent leakage at the joint, or if necessary any suitable packing can be used between the sections. The inlet section is formed with a tubular bearing 19 which is located centrally thereof, and is provided with a chamber 20 which communicates with the inlet nozzle 14, the inner wall 21 of said chamber forming one of the contacting faces between the sections and is provided with a central opening 22, and a drain opening 23 at its lower side.

Therotor section 15 is formed with an eccentric chamber 24, the inner wall of which is connected to the inlet section 13, and is provided witha central opening 25, and a drain opening 26 at its lower side which is adapted to register with the opening 23 in the inlet section. The outer wall 27 of this rotor section is provided with an elongated bearing sleeve 28 which is exteriorly screwthreaded to receive an interiorly threaded packing-nut 29 preferably formed of Babbitt metal. Supported in bearings 19 and 28 is a combined rotor and fan shaft 30, suitable bushings 31 being provided in said bearings, and secured to this shaft 30 within the chamber 24, is a rotor 32 which is formed with a disk 33 having a shaft-sleeve 34 from which the blades 35 radiate. Disk-wall 33 is formed of a diameter substantially equal to the diameter of the opening 25, so that after the inlet section is detached, the rotor and its shaft can be withdrawn from the rotor section. A suitable packing 36 is positioned around the shaft 30 and interposed between the bearing 28 and the Babbitt metal nut 29.

At the front end of the shaft 30 is detachably secured a fan section which is secured in position on the shaft by the set-screw 37.

teriorly of the sleeve 39 is positioned a bush-.

ing sleeve 42 which is provided at its outer end with a circular flange 43 and by which the sleeve 42 is secured within the sleeve 39.

The belt-wheel 38 is formed with an open side or hollow as shown at 44, and on its interior is preferably provided with a rib 45, and said hollow is adapted to receive the Babbitt-metal nut 29, so that the belt-wheel covers the Babbittmetal nut and the front wall of the belt-wheel engages the Babbittmetal nut and prevents its unscrewing from the bearing 28.

In the types of automobiles to which this pump attachment is especially adapted, the top water connection 12 is connected to the engine by means of suitable bolts 46 which engage ears 17 formed on the engine and cars 18 on a nipple 49, which forms a part of the top water connection. It is this existing connecting point which is utilized in this invention to secure the pump unit in position, and a simple support which is freely accessible to adjust, attach and detach is secured by the use of a supporting plate 50. This plate 50 is provided centrally at its top edge with an aperture 51 which is adapted to register with the existing water opening, and also at its top edge with side openings adapted to register with and be engaged by the existing bolts l6. Thus the supporting plate can be secured in position without altering the existing parts of the mechanism. At its lower end the supporting plate is provided with an elongated vertical slot 52, through which is adapted to be secured a bolt 53 which also engages an ear or extension 54: formed integral with the inlet section of the pump. The contacting side of the ear 54: is preferably roughened, as indicated in dotted lines at 55, to prevent accidental displacement of the pump unit after the bolt 53 has been secured in place, and in addition, a split spring washer 56 is preferably used between the head of the bolt and the supporting plate to prevent the accidental unscrewing of the bolt. Thus it will be seen that a readily attachable supporting means for the entire pump unit and fan is secured, which is supported from the top waterconnection to the engine, making a substantial support for the relatively heavy pump unit.

A suitable pipe 57 connects the bottom of the radiator with the inlet nozzle 14, and a pipe 58 connects the discharge nozzle 16 of the rotor section with the inlet water connection of the engine. Preferably these connecting pipes 57 and 58 are formed of rubber hose sections connected together by angular metal elbows 59, to which the hose sections are secured by suitable hose-clamps. A lubricating cup and duct 60 is provided for furnishing lubricant to the elongated bearing 28.

It is understood that the belt-wheel 36 is driven by the usual belt 61, shown in dotted lines, and which extends from the pulley on the crankshaft of the engine, and to tension this belt, bolt 53 is loosened and the pump unit is then adjusted around the bolt 53 as a pivot until the necessary tension is secured. The pump unit can also be adjusted vertically in the slot 52 of the supporting plate to accommodate the pumpunit to new and old types of machines, and also to properly center the fan with respect to the radiator.

The hollow belt-wheel 86 enables the use of a relatively long shaft bearing, thereby facilitating an easy and smooth running of the rotor and fan, and this long bearing could not be secured otherwise, as the existing distance between the engine and radiator in machines of the character is very limited. In operation, it is obvious that the pump draws the water from the bottom of the radiator through the pipe 57, and forces it through the pipe 58 to the engine, and then through the water-jacket of the engine and the pipe 12 to the top of the radiator.

Should it be necessary to draw the water from the system, the rotor chamber will automatically drain through the apertures 28 and 26, and the entire pump mechanism can be easily separated, by removing the bolts 17-and the inlet section, then releasing screw 37, and finally withdrawing both the rotor and its shaft through the opening 25 in the rotor section. The belt-wheel and fan can then be removed from over the packing nut, and the packing nut can then be removed to reach the packing 36.

Having thus fully described the invention, what is claimed is 1. A pump attachment for thermosiphon water systems of automobiles, comprising a pump unit, and a support for said unit constructed to be secured between the existing connecting means of the top water connection and engine of the automobile.

2. A pump attachment for thermosiphon water systems of automobiles, comprising a pump unit, and a support for said unit provided with a flat portion at its upper end adapted to be secured between the existing connecting means of the top water connection and engine of the automobile, and means at the lower end of said support for attaching the pump unit thereto and permitting a rotatable adjustment of the pump unit.

3. A pump attachment for thermosiphon water systems of automobiles, comprising a pump unit, and a support for said unit provided with a flat portion at its upper end adapted to be secured between the existing connecting means of the top water connection and engine of the automobile, and means at the lower end of said support for attaching the pump unit thereto and permitting a rotatable and also a vertical adj ustment of the pump unit.

4. A pump attachment for thermosiphon water systems of automobiles, comprising a pump casing formed of an inlet section and a rotor section secured together in a detachable manner, a rotor in said rotor section, a rotor shaft supported by said rotor section, a fan and belt pulley secured to the outer end of said shaft, said inlet section of the pump being provided with an inlet nozzle and means for securing it to a support, and a supporting plate constructed to be attached to an existing part of the automobile and provided with means at its lower end to secure and support the inlet section in position:

5. A pump attachment for thermosiphon water systems of automobiles, comprising a pump unit support constructed to be attached to the top water connection of an engine, a casing consisting of a pump inlet section supported for rotatable adjustment on the pump unit support, a rotor section removably secured to and supported by said inlet section, a shaft supported by said rotor section, a rotor fixed to the inner end of said shaft within the rotor section, and a belt pulley and fan detachably secured to the outer end of said rotor shaft, and pipe connections between the inlet section of the pump and the radiator of the automobile and also between the rotor section and the water jacket of the engine.

6. In a device of the character described, a pump and means for supporting it from the top water connection of an engine, and a belt pulley and fan supported bysaid pump, said pump embodying an inlet and a rotor section detachably secured together, both said inlet and rotor sections having inner contacting walls forming an annular chamher in each section, inlet and outlet nozzles for said section respectively, and drain openings extending through both of said inner walls at the lower side of the pump, and pipe connections between the inlet nozzle and the radiator of the engine and also between the outlet nozzle and the water jacket of the engine.

In testimony whereof I aflix my signature.

WILLIAM EARNEST CASE. 

